Question

? + HNO3 = KNO3 + CO2 + H20

Answer 1

K₂CO₃ + 2HNO₃ → 2KNO₃ + CO₂ + H₂O

Answer 2

The equation you provided is a chemical equation that represents a reaction between an unknown substance and nitric acid (HNO3) resulting in the formation of potassium nitrate (KNO3), carbon dioxide (CO2), and water (H2O).

To balance the equation, we need to determine the coefficients in front of each compound to ensure that the number of atoms on both sides of the equation is equal.

The balanced equation for the reaction is:

2 HNO3 + K2CO3 → 2 KNO3 + CO2 + H2O

In this balanced equation, two molecules of nitric acid (HNO3) react with one molecule of potassium carbonate (K2CO3) to produce two molecules of potassium nitrate (KNO3), one molecule of carbon dioxide (CO2), and one molecule of water (H2O).